2017-05-01 1:16 GMT+09:00 Rabin Vincent <rabin@xxxxxx>: > Evaluate LDFLAGS_BUILD_ID (which involves invoking the compiler) only > once instead of over and over. > > This provides a ~20% reduction in null build time with x86 allnoconfig: > > $ make allnoconfig && make -j8 > $ perf stat -r5 -e sched:sched_process_exec make -j8 > - 2 119 sched:sched_process_exec > + 1 878 sched:sched_process_exec > > - 1,238817018 seconds time elapsed > + 0,971020553 seconds time elapsed > > Signed-off-by: Rabin Vincent <rabin@xxxxxx> Applied to linux-kbuild/kbuild. Thanks! -- Best Regards Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html